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Proceedings Paper

Revolutionizing the design of an evanescent-wave-based fiber-optic fluorometer
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Paper Abstract

A typical evanescent-wave fiber-optic fluorometer (EWFOF) has an excitation (Ex) light source attached at one end, causing a significant level of stray Ex light mixed with a much weaker signal at the detection end. A high-performance filter / detector assembly is hence a common requirement for signal recovery. We have proposed a side-excited EWFOF featuring significant suppression of this stray light level and enhancement of the fluorescent emission signal. In particular, this EWFOF limits its sensing volume within a single droplet approximately the diameter of a fiber core. The paper compares the performance of this fluorometer with that of a conventional EWFOF based on several identical conditions such as fiber type, filter and Ex source power level as well as the detection system.

Paper Details

Date Published: 16 May 2008
PDF: 4 pages
Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70040N (16 May 2008); doi: 10.1117/12.783024
Show Author Affiliations
Jianjun Ma, Univ. du Québec en Outaouais (Canada)
Wojtek J. Bock, Univ. du Québec en Outaouais (Canada)

Published in SPIE Proceedings Vol. 7004:
19th International Conference on Optical Fibre Sensors
David Sampson; Stephen Collins; Kyunghwan Oh; Ryozo Yamauchi, Editor(s)

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